Water cooler



FIG. 1 is a front, side, top perspective view of a water cooler showing our new design;

FIG. 2 is a front perspective view of the water cooler shown in FIG. 1;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view of the water cooler shown in FIG. 1; and,

FIG. 8 is a front, side, top perspective view of a water cooler showing a second embodiment of our new design.

The broken lines in the drawings are included for the purpose of illustration and form no part of the claimed design. 

We claim the ornamental design for the water cooler, as shown and described in the drawings. 